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0.5mol/dm3 hydrochloric acid is added gradually to a flask containing 20cm3 of 2 mol/ dm3 sodium hydroxide solution.
What is the total volume, in cm3, of the mixture in the flask when the solution is just neutral?
A 30
B 40
C 60
D 100

Respuesta :

owinoonyango9

Answer:

The answer is B which is 40

pstnonsonjoku

From the calculations and the data presented, the total volume in the flask is 100cm^3

What is neutralization?

A neutralization occurs between an acid and a base to yiled salt and water only.

The reaction equation here is; HCl + NaOH -----> NaCl + H2O. Now, the volume of HCl used is obtained from;

2 * 20 * 1/0.5 * 1 = 80 cm^3

Total volume in the flask =  80 cm^3 + 20cm3 = 100cm^3

Learn more about neutralization:https://brainly.com/question/15395418

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